Qt Documentation

explorer.cpp Example File

sensor_explorer/import/explorer.cpp

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****************************************************************************/#include "explorer.h"#include <QtCore/QDebug>#include <qsensor.h>#include <QMetaObject>#include <QMetaProperty>/*
\class QSensorExplorer
\brief The QSensorExplorer type provides an easy access for reading all avalaible sensors installed on the system.
*//*
Construct a QSensorExplorer object with parent \a parent
*/QSensorExplorer::QSensorExplorer(QObject* parent)
: QObject(parent)
, _selectedSensorItem(0)
{
loadSensors();
}
/*
Destructor of a QSensorExplorer
*/QSensorExplorer::~QSensorExplorer()
{
}
/*
Load all available sensors and store it in a list.
*/voidQSensorExplorer::loadSensors()
{
_availableSensors.clear();
foreach (constQByteArray&type,QSensor::sensorTypes()) {
qDebug() <<"Found type"<< type;
foreach (constQByteArray&identifier,QSensor::sensorsForType(type)) {
qDebug() <<"Found identifier"<< identifier;
// Don't put in sensors we can't connect toQSensor* sensor =newQSensor(type,this);
sensor->setIdentifier(identifier);
if (!sensor->connectToBackend()) {
qDebug() <<"Couldn't connect to"<< identifier;
continue;
}
qDebug() <<"Adding identifier"<< identifier;
_availableSensors.append(newQSensorItem(sensor,this));
}
}
emit availableSensorsChanged();
}
/*
\fn QSensorExplorer::availableSensorsChanged()
Notifies the client if the list of the available sensors was changed
*//*
\property QSensorExplorer::availableSensors
Returns a list of all available sensor.
*/QQmlListProperty<QSensorItem>QSensorExplorer::availableSensors()
{
returnQQmlListProperty<QSensorItem>(this,_availableSensors);
}
/*
\fn QSensorExplorer::selectedSensorItemChanged()
Notifies the client if the selected sensor has been changed
*//*
\property QSensorExplorer::selectedSensorItem
Returns the current selected sensor item.
*/QSensorItem*QSensorExplorer::selectedSensorItem()
{
return _selectedSensorItem;
}
/*
\fn QSensorExplorer::setSelectedSensorItem(QSensorItem* selitem)
Sets the QSensorItem \a selitem as the current selected QSensorItem.
*/voidQSensorExplorer::setSelectedSensorItem(QSensorItem* selitem)
{
if (selitem && _selectedSensorItem != selitem) {
if (_selectedSensorItem)
_selectedSensorItem->unSelect();
_selectedSensorItem = selitem;
_selectedSensorItem->select();
emit selectedSensorItemChanged();
}
}